Home / 18,902,126.40-28,334,527.20-9,309,652.80

Finding the Fourth Proportional to 18,902,126.40, 28,334,527.20 and 9,309,652.80

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Solution

The fourth proportional to 18,902,126.40, 28,334,527.20 and 9,309,652.80 is: 13,955,287.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,902,126.40 : 28,334,527.20 = 9,309,652.80 : x
  2. Step 2: Convert to fraction form
    18,902,126.40/28,334,527.20 = 9,309,652.80/x
  3. Step 3: Cross multiply
    18,902,126.40x = 28,334,527.20 × 9,309,652.80
  4. Step 4: Simplify right side
    18,902,126.40x = 263,784,610,484,156.19
  5. Step 5: Solve for x
    x = 263,784,610,484,156.19/18,902,126.40
  6. Step 6: Final answer
    x = 13,955,287.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.